Acore Filtration Corporation
has been to provide customers with high-quality Oil Purification Machine and
oil management system. From research and development experiments to the most
complex environment, and then to the new industrial equipment on the high
precision requirements, we always strive to achieve excellent product
manufacturing technology and high level of technology investment, and creating
a new situation of environmental protection and energy conservation. Power
transformer maintenance guidelines for 220kV transformer must be vacuum oil
filling, other transformers should also be used when the conditions of vacuum
oiling. When the oil is injected into the transformer tank, it should be purified
by Oil Purification Machine and Vacuum Oil Purifier is suitable for oil filling
of 220kV transformer.

Vacuum Oil Filling of Transformers

By checking the vacuum
to check the strength of the tank, the general local elastic deformation should
not exceed twice the thickness of the box wall, and check the tightness of the
vacuum system.

Method of operation:

(Usually evacuated time
= 1/3 ~ 1/2 exposed air time), the oiling temperature should be slightly higher
than the body temperature; to the oil temperature of the transformer tank, 3 ~
5t / h speed of the oil into the transformer from the top of the box about
200mm to stop, and continue to vacuum to maintain more than 4h;

Transformer charge: the
transformer by the vacuum oil filling, the need to be injected into the oil
tank filling tube, is strictly prohibited from the lower throttle into the oil
when the oil should be slowly injected into the oil to the specified oil, and
then still 12h.

Main purpose of transformer vacuum pumping:

the transformer is the
internal winding, insulation bracket, iron and other components for vacuum
degassing treatment. After vacuum degassing treatment, the air in the oil, the
air attached to the core, the winding, the surface of the attachment air and
the pores of the organic solid insulating material and the moisture in the
moisture are removed.